Appendicitis: Symptoms, Warning Signs, and Emergency Management

What is Appendicitis: Symptoms, Warning Signs, and Emergency Management?

Appendicitis is an emergency condition where the appendix becomes inflamed, usually due to a blockage. The main symptom is abdominal pain that starts near the belly button and moves to the lower right side. Without prompt treatment, it can lead to a ruptured appendix and serious infection. The standard treatment is surgical removal of the appendix (appendectomy). If you suspect appendicitis, seek medical help immediately.

Symptoms

Early symptoms

• Abdominal pain starting near belly button: Pain typically begins near the belly button and then moves to the lower right side of the abdomen within hours. The pain often worsens when coughing, walking, or making sudden movements. (1) (5)
• Loss of appetite: Sudden lack of interest in food, often one of the first signs along with abdominal discomfort. This helps distinguish appendicitis from less serious stomach upsets. (1) (8)
• Nausea and vomiting: Often follows the onset of abdominal pain. May worsen as the condition progresses, sometimes leading to nausea severe enough to prevent food intake. (5) (8)
• Low-grade fever: Fever typically ranging from 99-101°F (37-38°C). Higher fever may indicate a ruptured appendix or developing abscess. (1)
• General feeling of being unwell: Patients often describe a sense that something isn't right before specific symptoms appear. May include fatigue, chills, and overall discomfort. (8)

Serious or emergency symptoms

• Sudden worsening of abdominal pain: Sharp increase in pain severity may indicate appendix rupture, which requires immediate emergency care. The pain may briefly improve right before rupture, then intensify. Call emergency services or go to the nearest emergency department. (1)
• High fever with chills: Fever above 101°F (38°C) with shaking chills suggests a severe infection that has spread beyond the appendix. Seek emergency medical care immediately. (5)
• Confusion or disorientation: Mental changes may signal sepsis, a life-threatening response to infection that requires intensive treatment. This is a medical emergency - call 911 or your local emergency number. (1)

Causes

Primary causes

• Blockage of the appendix: Most cases occur when the opening of the appendix becomes blocked, often by hardened stool (fecalith), foreign objects, or swollen lymph nodes from infection. The blockage leads to bacteria overgrowth and inflammation. (5)

Risk factors

Diagnosis

Doctors use a combination of physical exams, symptom history, and tests to diagnose appendicitis. During the exam, they may check for tenderness in the lower right abdomen and look for signs like rebound tenderness (pain when pressure is released). Blood tests can show signs of infection. Imaging tests like ultrasound (often used for children) or CT scan help confirm the diagnosis and check for complications. Since early detection is crucial, don't delay seeking medical help if you have concerning symptoms.

Treatment

Medication options

Lifestyle and self-care

• Post-surgery recovery care: Follow your surgeon's instructions about wound care, activity restrictions, and returning to normal activities. Most people recover fully within 2-3 weeks. (2)
• Diet after surgery: Start with clear liquids and gradually return to solid foods as tolerated. Avoid strenuous activity for several weeks as advised by your doctor. (7)

Always discuss dosing and treatment changes with your own prescriber.

Possible complications

• Ruptured appendix: If the inflamed appendix bursts, it can spread infection throughout the abdomen (peritonitis), which is life-threatening and requires emergency surgery and intensive antibiotic treatment. (4)
• Abscess formation: Pockets of pus may form around a ruptured appendix. These may require drainage procedures in addition to antibiotics and surgery. (4)
• Sepsis: A dangerous body-wide response to infection that can lead to organ failure, shock, and death without prompt intensive treatment. (4)

When to see a doctor

Routine follow-up

• Contact your doctor promptly if you develop new abdominal pain that worsens over several hours, especially if accompanied by nausea, fever, or appetite loss. (1)

Seek emergency care

• Seek emergency care immediately for: sudden severe pain in the lower right abdomen, pain with high fever (over 101°F/38°C), vomiting that prevents keeping liquids down, confusion, or fainting. (6)

Frequently asked questions

References

1. NHS — Appendicitis symptoms source 1
2. NHS — Appendicitis treatment source 2
3. NHS — Appendicitis diagnosis source 3
4. NHS — Appendicitis complications source 4
5. Mayo Clinic — Appendicitis overview source 5
6. Mayo Clinic — Appendicitis diagnosis source 6
7. Mayo Clinic — Appendicitis treatment source 7
8. MedlinePlus — Appendicitis source 8